Drain device for well-pump tubing.



H. 'G. RISDEN & F. F. SEPPI. DRAIN DEVICE FOR WELL PUMP TUBING.

APPLICATION FILED DEC. 6.1915.

Patented Jan. 23, 1917.

HOMER G. EISDEN AND FRANK SEFPI, OF ORCUTT, CALIFORNIA.

DRAIN DEVICE FOR WELL-PUMP TUBING.

Specification of Letters IPatent.

Patented Jan. 23, 191'? Application filed December 6, 1915. Serial No. 65,404.

To all whom it may concern:

Be it known that we, HOMER G. RIsDnN and FRANK Snrrr, both citizens of the United States, residing at Orcutt, in the county of Santa Barbara, State of California, have invented new and useful Improvements in Drain Devices for Well-Pump It is a primary object of this invention tov provide a. pump with a drain device which can be operated by raising and lowering the pump tubing.

It is another object of this invention to provide means for locking the liquid release mechanism in. position for draining the pump tubing.

lit is a further object to provide means for locking the fluid release mechanism automatically and which may be unlocked by means of a gas anchor or a rod or pipe of like structure.

We attain these objects by means of the embodiment of our invention illustrated in the accompanying drawing, in which:

Figure 1 is an elevation of a pump tubing, a pump barrel and the fluid release mechanism. Fig. 2 is a fragmentary detail in section showing an operative part of the release mechanism. Fig. 3 is a sectional detail View of the parts shown in Fig. 2 with the release mechanism in normal position. Fig. 4: is an enlarged fragmentary detail section of the fluid release valve.

Referring more particularly to the draw ing, 5 indicates the plunger barrel which is secured by a threaded coupling 6 to a section of tubing 7 having an enlarged portion 8 which carries the liquid release valve. Adjacent the cylindrical periphery of the portion 8 is a bore 9 which is disposed with its axis longitudinal of the portion 8. Bore 9 is threaded adjacent its end as indicated at 10 and an apertured plug 11 is disposed therein with its thread in engagement with threads 10. The plug 11 is apertured, as indicated at 12 forming a discharge port, the upper end of the plug being shaped to form a seat 13 for a ball valve 14. The bore 9 and plug 11 form a valve cage. A port 15 connects bore 9 and the interior of the tubing.

It is obvious that upon raising the ball 14: from its seat 13 means will be provided for the passage of fluid from the pump tul ing through port 15, bore 9 and outlet 12, so that the pump tubing may be drained.

The lower end of barrel 5 is provided with a valve seat 16 for a standing valve. If desired the usual standing valve shoe may be usedJ This part of the structure, how ever, is not a feature of our invention. Secured to the lower end of the pump barrel is a long coupling 1'? which has secured to its lower end a section 18 provided with an annular recess, thereby forming a shoulder 19 at its upper end and a shoulder 20 at its lower end. A slidable sectional tube 21 is mountedto telescope with section 18 and has a flange 22 which provides a shoulder 25 cooperating with shoulder 20. Section 18 is provided with an aperture 23 adjacent the shoulder 25 on flange 22.

Detent 24 is mounted upon a bowed leaf spring 26 which is secured to the tubing sec tion 18 by any suitable means. Oppositely disposed to spring 26 is a bowed spring 27. Instead of a single spring 27, a plurality of springs may be used. Springs26 and 27 are so arranged that gas anchor 28 which is at tached to the standing valve will, when disposed in the position shown in Fig. 2, tend to force the spring 26 outward and with it the detent 2%. If the section of tubing is lowered to the bottom so that section 21 comes in contact therewith, said section would telescope with relation to section 18 and will be disposed in the position shown in dotted lines in Fig. 2. Dctent 24; will then be forced outward and beneath the shoulder 25, locking the section 21 in the position shown in dotted lines. As the gas anchor is lifted it permits spring 26 to move toward the center of the tubing and pull detent 24% from beneath shoulder 25, whereupon the section 21 may be-moved-to its normal position, as shown in Fig. 3.

A. collar 29 is slidably mounted upon the section 18 and has secured to it a rod 30 which extends longitudinally of the barrel being guided by apertured lugs 31 and 32 formed on the barrel and is disposed beneath the ball 14. l/Vh'ile we have herein shown lugs integral with barrel 5, we may 'section 21 in its upward position.

use rings placed upon barrel 5 or any other suitable guide means. The rod 30 is of such length that when section 21 is in its lower position the ball 14 will rest on the seat 18. As the section 21 is forced upward, the collar 29 will be forced with it and rod 30 will lift ball ll from its seat releasing the liquid. A spring 33 is disposed between the shoul der 19 and the flange 22 and tends to hold the section 21 in its lower position.

The mechanism is normally in the position shown in Fig. 1. hen fluid is to be released from the tubing the latter is lowered to the bottom causing section 21 to abut thereagainst and to telescope with section 18, flange 22 moving upward past detent 2 1. The gas anchor 29 is dropped between springs 26 and 27, moving the detent 2i outward under shoulder 25 and locking Tthe he movement of section 21 upward causes collar 29 to move and ball valve 1% to be lifted from its seat by rod 30. The fluid then escapes from the pump tubing through ports 15, bore 9 and outlet 12.

To restore the mechanism, the tubing is lifted, gas anchor moved into the position shown in Fig. 3, whereupon detent 24 moves from beneath the shoulder and section 21 being released moves to its lower position. Spring 33 moves collar 29 downward and with it rod 30 thus permitting ball 14 to seat and close the outlet port 12. \Vehave shown a helical spring 84 disposed in bore 9 and tending to force the ball valve l i upon its seat,-thereby insuring the seating of valve 14.

\Vhat we claim is:

1. A pump drain device, comprising the combination with a pump tubing, of a slidable member mounted thereon, a section of tubing having acheck valve disposed in the wall thereof to release fluid therefrom, a collar disposed to be engaged by said sliding member, a rod secured to said collar extending longitudinally of said tubing for engagement with said valve, a detent and catch mechanism interposed between said tubing and said slidable member to lock said slidable member to said tubing, said mechanism normally in locked position, and means to lock said mechanism.

2. A pump drain device, eomprisingthe combination with a pump tubing, of a slidable member mounted thereon, a section of tubing having a check valve disposed in the wall thereof to release fluid therefrom, a collar disposed to be en aged .by said sliding member, a rod secured to said collar extending longitudinally of said tubing for engagement with said valve, said sliding member formed with a catch shoulder, a detent for engaging said shoulder, a spring on which said detent is mounted and normally holding the latter out of engagement with said shoulder, and means for moving said detent into engagement with said shoulder.

A. pump drain device, comprising the combination with av pump tubing, of a slidable member mounted thereon, a section of tubing having a check valve disposed in the wall thereof to release fluid therefrom, a collar disposed to be engaged by said sliding member, a rod secured to said collar extending longitudinally of said tubing for engagement with said valve, said sliding member formed with a catch shoulder, a detent for engaging said shoulder, a spring secured to the inner wall of said tubing and extending toward the center thereof, said detent mounted on said spring, the latter tending to hold said detent out of engagement with said shoulder, means for interposition between said spring and the inner wall of said tubing to move said detent into engagement with said catch.

4. A pump drain device, comprising the combination with a pump tubing, of a slidable member mounted thereon having a catch shoulder on its inner wall, a section of tubing having a check valve disposed in the wall thereof to release fluid therefrom, said tubing provided with an aperture adjacent said shoulder, a detent disposed in said aperture, a spring on which said dotent is mounted, said spring secured to said tubing and bowed toward the center thereof, a second spring registering with said first spring, a gas anchor disposed to be moved between said springs to lock said detent with said catch shoulder, a collar mounted on said tubing and disposed to be engaged by said sliding member, and a rod secured to said collar extending longitudinally of said tubing for engagement with said valve.

In witness that we claim the foregoing we have hereunto subscribed our names this 23rd day of November, 1915.

HOMER G. RISDEN.

FRANK SEPPI.

Gopis efrthis patent may be obtained for five cents each, by addressing the Commissioner of fatents, Washington, D. 6. 

